145206377 has 2 divisors, whose sum is σ = 145206378. Its totient is φ = 145206376.

The previous prime is 145206343. The next prime is 145206403. The reversal of 145206377 is 773602541.

145206377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143616256 + 1590121 = 11984^2 + 1261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145206377 is a prime.

It is a super-2 number, since 2×145206377² = 42169783842932258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145206577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72603188 + 72603189.

It is an arithmetic number, because the mean of its divisors is an integer number (72603189).

Almost surely, 2^145206377 is an apocalyptic number.

It is an amenable number.

145206377 is a deficient number, since it is larger than the sum of its proper divisors (1).

145206377 is an equidigital number, since it uses as much as digits as its factorization.

145206377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 145206377 is about 12050.1608702955. The cubic root of 145206377 is about 525.6079150020.

The spelling of 145206377 in words is "one hundred forty-five million, two hundred six thousand, three hundred seventy-seven".